Mildred,

This link ( http://www.nymasons.org/lodge.html ) will take you to the webpage for the Grand Lodge of New York and a list of the lodges in their jurisdiction. The name Allemania is not in the list but there are 2 or 3 in Brooklyn you could check with. It is possible the Allemania Lodge was absorbed by a larger lodge or just closed altogether. They may have just changed their name. If one of those lodges cannot help you, try sending a request to the Grand Lodge of New York and see if they can help you find him.

Good luck,
Vickie